When we compile NSS on HP-UX, we get the following compiler warning: cc -o HP-UXB.11.11_DBG.OBJ/HP-UX_ABI32_FPU/prng_fips1861.o -c -g -DHPUX10 -Ae +Z -DHPUX -Dhppa -D_HPUX_SOURCE -D_USE_BIG_FDS -Aa +e +DA2.0 +DS2.0 -DHPUX11 -DXP_ UNIX -DSHLIB_SUFFIX=\"sl\" -DSHLIB_PREFIX=\"lib\" -DSHLIB_VERSION=\"_3\" -DSOFTO KEN_SHLIB_VERSION=\"3\" -DRIJNDAEL_INCLUDE_TABLES -DDEBUG -UNDEBUG -DDEBUG_svrbl d -DNSS_USE_ABI32_FPU -DMP_ASSEMBLY_MULTIPLY -DMP_ASSEMBLY_SQUARE -DMP_API_COMPA TIBLE -I../../../../dist/HP-UXB.11.11_DBG.OBJ/include -I../../../../dist/public /nss -I../../../../dist/private/nss -Impi -Iecl prng_fips1861.c cpp: "prng_fips1861.c", line 78: warning 2001: Redefinition of macro BSIZE. I examined all the system headers in /usr/include and its subdirectories. I found that the macro BSIZE is defined in the system header file <sys/param.h>: #define BSIZE DEV_BSIZE but not used anywhere. So the redefinition of macro BSIZE in prng_fips1861.c is benign, hence the "trivial" severity of this bug. I suggest that we only fix this bug (by renaming BSIZE as RNG_BSIZE or FIPS_BSIZE, and renaming the related macro GSIZE similarly) on the trunk (NSS 3.12) to avoid redoing the FIPS RNG algorithm testing.
I suggest you merely #undef BSIZE
bug 457045 has fixed this issue by replacing FIPS 186-2 PRNG with SP 800-90 Hash_DRBG. The file prng_fips1861.c no longer exists in the current NSS source.